Self-Determination Theory is a theory of motivation and personality that addresses three universal, innate and psychological needs these are       
I.        Competence    
II.        Relatedness   
III.        Autonomy  
IV.        Reinforcement

Self-Determination Theory is a theory of motivation and personality that addresses three universal, innate and psychological needs: competence, autonomy, and psychological relatedness. Self-Determination Theory (SDT) is an important theory of motivation that addresses issues of extrinsic and intrinsic motivation. People have innate psychological needs: Competence: Seek to control the outcome and experience mastery. Relatedness: is the universal want to interact, be connected to, and experience caring for others. Autonomy: is the universal urge to be causal agents of one’s own life and act in harmony with one’s integrated self. Deci and Ryan suggest that when people experience these three things, they become self-determined. These three elements also enable people to be intrinsically motivated to pursue the things that interest them.